import { ContextService } from '../context';
import { ProductInfo } from '../../models/product-info';
import { ValueChangeCallback } from '../../models/context/value-change-callback';
import { DeriveContextServiceContract } from '../../models/context/update-context-method';
import { LifecycleHooks } from '../../providers/service/lifecycle-hooks';
type ProductInfoContextFields = {
    readonly PRODUCT_INFO: string;
};
type ProductInfoContextFieldParams = {
    readonly PRODUCT_INFO: ProductInfo;
};
/**
 * Service for managing product information context.
 */
export declare class ProductInfoContextService extends ContextService<ProductInfoContextFields> implements DeriveContextServiceContract<ProductInfoContextFields, ProductInfoContextFieldParams>, LifecycleHooks {
    readonly PRODUCT_INFO = "productInfo";
    /**
     * Updates the product information in the context.
     *
     * @param productInfo - The new ProductInfo object to be set in the context.
     */
    updateProductInfo(productInfo: ProductInfo): void;
    /**
     * Subscribes to changes in the product information context.
     *
     * @param callbackFn - A callback function that will be called when the product information changes.
     * The callback receives the updated ProductInfo object or undefined as its parameter.
     * @returns A function that, when called, will unsubscribe from the product information changes.
     */
    onProductInfoChanged(callbackFn: ValueChangeCallback<ProductInfo | undefined>): () => void;
    /**
     * Retrieves the product information from the context.
     *
     * @return the product information or undefined, if there is no product information.
     */
    getProductInfo(): ProductInfo | undefined;
}
export {};